I’ve done all this before back before using the MU version. But I am trying on WP 3.0.1 now with Domain Mapping 0.5.2.

Under Super Admin > Domains it has the fields to insert the site id, domain and checkbox for primary. I fill out a domain to map it and nothing happens on this screen. Also no mappings will show up afterwards on the Super Admin > Sites in the Mapping column.

EDIT: Ok will I mapped the actual domain I want to use for a site. My sites are setup with subdomains.

I cannot setup the primary though. I guess if my main site is already using the domain I want for primary I don’t have to create a map?

Ok I figured that out too. “Primary” is to specify that the domain being mapped is the primary out of the two between the site’s subdomain in MU and the one being mapped. So that the mapped domain is loaded instead when accessing site1.domain.com